The Ritchey WCS 1-Bolt seatpost uses the so called one-bolt system. This make it easy to setup your saddle. The wide clamping divides the powers on the saddle rails equally.
Note: The one-bolt system clamps the saddle rails on the side. This is why you can only use saddles with round bridges. Do you have a saddle with a 7 x 9.6mm (Fizik-Standard), 8 x 8,5 (Selle Italia-Standard) rails? Then you will need a different seat clamp.